Job Information
Leidos Senior Full Stack Developer in Arlington, Virginia
Description
Leidos is seeking a talented Senior Full Stack Software Engineer to join our team to support our customer. The incumbent will support the transformation of our current development environment and will be responsible togather requirements and design, codify, integrate and implement secure solutions that support business functionality as well as the underlying infrastructure required to deploy and run those solutions.
Primary Responsibilities
Develop, document, and implement CI/CD strategy for management of Infrastructure as Code (IaC) baseline.
Develop and document shared infrastructure component management strategy to provide consistent standardized container, OS, and application baselines for infrastructure components available through self-service
Identify requirements, develop, document, and implement branching strategy to support change management requirements while automating as much of the deployment process as practical in the CI/CD pipeline.ie. Selenium, Prometheus or Cucumber or various DevSecOps functioning to include system debugging
Review, debug, and resolve technical issues throughout all stages of SDLC
Assist with process development and process improvement for Security Operations to include creation/modification of SOPs, Playbooks, and Work instructions
Measure effectiveness of process improvement and automation efforts via metrics and KPIs
Perform integration activities to connect with 3rd party software APIs
Design, implement, and maintain efficient and reusable Python code an be able to leverage C#, Poweshell or Javascript.
Analyze user needs and software requirements to determine feasibility of design within time and cost constraints.
Applies coding and testing standards, security testing tools (including ‘fuzzing’ static-analysis code scanning tools), threat modeling, and conducts code reviews.
Conduct trial runs of programs and software applications to ensure the desired information is produced and instructions are correct.
Evaluate factors such as reporting formats required, cost constraints, and need for security restrictions to determine hardware configuration.
Identify common coding flaws.
Identify security issues around steady state operation and management of software.
Incorporate security measures that must be taken when a product reaches end of life.
Perform integrated quality assurance testing for security functionality and resiliency attacks.
Identify potential flaws in codes to mitigate vulnerabilities.
Basic Qualifications
U.S. Citizenship and active DoD TS/SCI US Clearance.
Bachelor's Degree and a minimum of 12 years of directly relevant technical experience. Additional experience may be considered in lieu of degree.
6+ years' experience with designing, building and modifying standalone application software
6+ years' experience developing in SharePoint, 2+ years within SharePoint 2019.
5+ years' experience developing in an Agile environment.
5+ years' experience working in a Virtual infrastructure
Proficient in JavaScript, jQuery, Bootstrap, REST API, .NET, Visual Studio, SharePoint Designer Workflows, SPFX, Node.js React; JSON, HTML/CSS, XML
Extensive experience in design and automation of security tools and processes.
Extensive experience in development, APIs, and scripting language support
Experience implementing and maintaining services in a CI/CD pipeline
Experience in with Code repositories - i.e. GITLAB
Preferred Qualifications
Experience working Virtual environments
Experience working in AWS and Azure
Experience with SOAR platforms such as Swimlane, Phantom, Demisto, etc
Authoring SOPs, playbooks, work instructions and/or other process document
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:
February 23, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $131,300.00 - $237,350.00
The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
About Leidos
Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .
Pay and Benefits
Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .
Securing Your Data
Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .
If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission (https://reportfraud.ftc.gov/#/) .
Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
REQNUMBER: R-00176681
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.